Is he telling the truth?

Ok, so it was my final day of school today (forever!) and as you do I got the drunkest i've ever been before so everything seemed to blurt out about how i feel about this guy. It started back last year when we ended up getting with each other and because i was so annoyed i said that i liked him but really had a go at him because he didn't like me back at the time, It's been playing on my mind all year so i apologised to him yesterday and told him that I love him. He said that he thought i was beautiful and that he will always be there for me no matter what, if i was upset i just had to give him a ring and he'll be there as quickly as possible since he's going to uni in london and i will hopefully too next year as i want to go to drama school he won't be too far away. So since i'm a crying type of drunk I was distraught so later on in the day i was starting to sober up and he got more and more drunk to a point where he got aggressive with people and told me to 'f' off, then he was found collapsed in someones car.. (this sounds so bad i know). my friends keep saying that he's not worth it and there's plenty more fish in the sea but i find it so difficult to let go. So my question is was he telling the truth when i said that i love him, please help :) xxx